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A rectangular coil, with corners labeled ABCD, of length L and width w is placed in a magnetic field B as shown in Figure 27-6. If there is a current I flowing through this coil, what is the force acting on section AB of this coil?
A) ILB sinA?¸B) ILB cos A?¸C) ILB/2D) ILBE) 0 N
A photon with energy 1.85 eV is absorbed by a hydrogen atom. Find the speed of the electron released from the state in part (a) when it is far from the nucleus
A proton moving at 3.000 * 10^4 m/s is projected at an angle of30.00 degrees above a horizontal plane. If an electric fieldof 400.0 N/C is directed downwards, how long does it take the proton to return to the horizontal plane. Ignore the effectsof gr..
A cannon shoots a shell up with an initial vertical velocitycomponent of 500m/s and an initial horizontal component of 500m/s. how far away fromthe cannon will the shell hit
A 0.2 kg hoop (I=0.06 kg-m 2) rolls down the street without slipping by an angular velocity of 15 rad/s. It then hits a puddle of water in the road (treat the water-disk surface contact as a μ = 0.25). Decide how far it rolls until it stops.
Two 3.0 cm X 3.0 cm metal electrodes are spaced 1.0 mm apart and connected by wires to the terminals of a 9.0 V battery. What is the potential difference between electrodes
Bill and Julie are both now on identical trains. Bill's train is moving to the right with velocity (/2)c with respect to Julie's train. How long does Bill measure Julie's train to be
In a volcanic eruption, 2 km3 of mountain with a density of 1600 kg/m3 was lifted an average height of 513 m. How much energy in joules was released
A 4.0-W resistor has a current of 3.0 A in it for 5.0 min. How many electrons pass through the resistor
A student claims that if lightning strikes a metal flagpole, the force exerted by the earth's magnetic field on the current in the pole can be large enough to bend it. Typical lightning current are of the order of 10^4 to 10^5. Is the student's..
Rolling ball: the first hill is at 3 meter above the valley, second hill is at 7 meter. Find will the ball climb up to the top of the second hill
Concentric with the plastic shell, there is an infinitely long thick conducting cylindrical shell with inner radius a2 = 0.4 m and outer radius a3 = 0.5 m on which there is no net charge. Find the charge per unit length on the plastic shell. Calc..
a force of 60 N causes an object to have an acceleration equal to 4 m/s2. What is the object's mass
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